As stripped of colour as its title, apart from the red of flowing blood and burning eyes, The Grey urges contemplation on man as the human animal, one suddenly cast into the wilderness where real beasts dwell.

For all its macho standoffs and action set pieces and menacing off-screen howling, The Grey is at heart a simple moral fable about how true heroism consists in helping other human beings to live as long and die as well as they can.